Django显示服务器性能监控

监控系统CPU、内存和进程信息

一、运行环境与项目目录

1. Django 2.0.7
2. python 3.7
3. pymysql 0.9.3
   

二、配置文档：Setting

1. mysql 数据库

# Author: Allan
# Datetime: 2019-05-21
import pymysql
pymysql.install_as_MySQLdb()

DATABASES = {
    'default': {
        # 注释sqlite3
        # 'ENGINE': 'django.db.backends.sqlite3',
        # 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),

        # mysql
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'database',
        'USER': 'username',
        'PASSWORD': 'password',
        'HOST': 'ip',
        'PORT': 3306,
    }
}

2. Application definition

INSTALLED_APPS = [
   'django.contrib.admin',
   'django.contrib.auth',
   'django.contrib.contenttypes',
   'django.contrib.sessions',
   'django.contrib.messages',
   'django.contrib.staticfiles',
   'web'  #添加App，下面python3 mkmigrations web使用
]

MIDDLEWARE = [
   'django.middleware.security.SecurityMiddleware',
   'django.contrib.sessions.middleware.SessionMiddleware',
   'django.middleware.common.CommonMiddleware',
   # 'django.middleware.csrf.CsrfViewMiddleware', 注释这一行，防止403错误
   'django.contrib.auth.middleware.AuthenticationMiddleware',
   'django.contrib.messages.middleware.MessageMiddleware',
   'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'monitor.urls'

TEMPLATES = [
   {
       'BACKEND': 'django.template.backends.django.DjangoTemplates',
       'DIRS': [os.path.join(BASE_DIR, 'templates')],  #修改模版目录
       'APP_DIRS': True,
       'OPTIONS': {
           'context_processors': [
               'django.template.context_processors.debug',
               'django.template.context_processors.request',
               'django.contrib.auth.context_processors.auth',
               'django.contrib.messages.context_processors.messages',
           ],
       },
   },
]

3. S ecurity

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = ['*']

4. Internationalization

LANGUAGE_CODE = 'en-us'
# 修改时区
TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True
# 修改时区
USE_TZ = False

二、创建 Models，操作数据

from django.db import models

# Create your models here.


class CpuInfo(models.Model):
    # CPU信息
    time = models.DateTimeField()
    host = models.CharField(max_length=40)
    usage_system = models.FloatField(null=True)
    usage_user = models.FloatField(null=True)
    usage_softirq = models.FloatField(null=True)
    usage_iowait = models.FloatField(null=True)


class MemoryInfo(models.Model):
    #内存信息
    time = models.DateTimeField()
    host = models.CharField(max_length=40)
    used_percent = models.FloatField(null=True)


class ProcstatInfo(models.Model):
    # 进程信息
    time = models.DateTimeField()
    host = models.CharField(max_length=100)
    exe = models.CharField(max_length=40)
    pid = models.FloatField()
    cpu_usage = models.FloatField(null=True)
    memory_rss = models.FloatField(null=True)

三、创建数据库

1. Terminal 下运行manager.py

# python3 manager.py mkmigrations web
# python3 manager.py migrate

2. 查询mysql

mysql> show tables;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id:    449745
Current database: perf_monitor

+----------------------------+
| Tables_in_perf_monitor     |
+----------------------------+
| auth_group                 |
| auth_group_permissions     |
| auth_permission            |
| auth_user                  |
| auth_user_groups           |
| auth_user_user_permissions |
| django_admin_log           |
| django_content_type        |
| django_migrations          |
| django_session             |
| web_cpuinfo                |
| web_memoryinfo             |
| web_procstatinfo           |
+----------------------------+
13 rows in set (0.51 sec)

mysql> 

四、 views.py

创建两个views，一个显示CPU和内存信息；另一个现实进程信息

# Author: Allan
# Datetime: 2019-05-21
import time
import json
from django.shortcuts import render
from web import models

# Create your views here.


def show_procstat(request):
    servers = ['rotestZone01', 'rotestZone02']
    procstat_ret = {}
    for server in servers:
        procstat_info = models.ProcstatInfo.objects.filter(host=server)
        procstat_exe = {}
        for row in procstat_info:
            temp_time = int(time.mktime(row.time.timetuple())) * 1000
            key = str(row.exe) + '_' + str(int(row.pid))
            if key not in procstat_exe:
                procstat_exe[key] = {}
                procstat_exe[key]['cpu_usage'] = []
                procstat_exe[key]['memory_rss'] = []
            procstat_exe[key]['cpu_usage'].append([temp_time, row.cpu_usage])
            procstat_exe[key]['memory_rss'].append([temp_time, row.memory_rss])
        procstat_ret[server] = procstat_exe

    return render(request, 'show_procstat.html', {"procstat_ret": json.dumps(procstat_ret)})


def show_servers(request):
    servers = ['rotestZone01', 'rotestZone02']
    server_res = {}
    cpu_res = {}
    mem_res = {}
    for server in servers:
        cpu_info = models.CpuInfo.objects.filter(host=server)
        cpu_ret = {}
        usage_system = []
        usage_user = []
        usage_softirq = []
        usage_iowait = []
        for row in cpu_info:
            temp_time = int(time.mktime(row.time.timetuple())) * 1000
            usage_system.append([temp_time, row.usage_system])
            usage_user.append([temp_time, row.usage_user])
            usage_softirq.append([temp_time, row.usage_softirq])
            usage_iowait.append([temp_time, row.usage_iowait])
        cpu_ret['usage_system'] = usage_system
        cpu_ret['usage_user'] = usage_user
        cpu_ret['usage_softirq'] = usage_softirq
        cpu_ret['usage_iowait'] = usage_iowait
        cpu_res[server] = cpu_ret

        mem_info = models.MemoryInfo.objects.filter(host=server)
        mem_ret = []
        for row in mem_info:
            temp_time = int(time.mktime(row.time.timetuple()))*1000
            mem_ret.append([temp_time, row.used_percent])
        mem_res[server] = mem_ret

    server_res['cpu_res'] = cpu_res
    server_res['mem_res'] = mem_res

    return render(request, 'show_servers.html', {"server_res": json.dumps(server_res)})

五、创建html模版

创建两个html模版，一个显示CPU和内存信息；另一个现实进程信息

<html xmlns="http://www.w3.org/1999/html">
<head>
<meta charset="UTF-8" />
<title>服务器监控信息title>
<script src="https://code.jquery.com/jquery-3.1.1.min.js">script>
<script src="https://code.highcharts.com/highcharts.js">script>
<script src="https://code.highcharts.com/modules/exporting.js">script>
<script src="https://code.highcharts.com/modules/export-data.js">script>
<script language="JavaScript">
$(document).ready(function() {
    $("#servers").change(function (){
        var selected = $(this).children('option:selected').val();
        var server_res = jQuery.parseJSON('{{ server_res|safe }}');

        var cpu_res = server_res['cpu_res']
        var cpu_info = cpu_res[selected]

        Highcharts.setOptions({
            global:{
                useUTC: false
                }
            });
        Highcharts.chart('cpu', {
            chart: {
                zoomType: 'x'
            },
            title: {
                text: selected + ': CPU 信息'
            },
            subtitle: {
                text: document.ontouchstart === undefined ?
                    'Click and drag in the plot area to zoom in' : 'Pinch the chart to zoom in'
            },
            xAxis: {
                type: 'datetime'
            },
            yAxis: {
                title: {
                    text: '使用率 (%)'
                }
            },
            legend: {
                enabled: false
            },
            plotOptions: {
                area: {
                    fillColor: {
                        linearGradient: {
                            x1: 0,
                            y1: 0,
                            x2: 0,
                            y2: 1
                        },
                        stops: [
                            [0, Highcharts.getOptions().colors[0]],
                            [1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
                        ]
                    },
                    marker: {
                        radius: 2
                    },
                    lineWidth: 1,
                    states: {
                        hover: {
                            lineWidth: 1
                        }
                    },
                    threshold: null
                }
            },

            series: [
                {
                   type: 'area',
                   name: 'usage_system',
                   data: cpu_info['usage_system']
                },
                {
                   type: 'area',
                   name: 'usage_user',
                   data: cpu_info['usage_user']
                },
                {
                   type: 'area',
                   name: 'usage_softirq',
                   data: cpu_info['usage_softirq']
                },
                {
                   type: 'area',
                   name: 'usage_iowait',
                   data: cpu_info['usage_iowait']
                }]
        });


        var mem_res = server_res['mem_res']
        var mem_info = mem_res[selected]
        Highcharts.chart('mem', {
            chart: {
                zoomType: 'x'
            },
            title: {
                text: selected + ': 内存信息'
            },
            subtitle: {
                text: document.ontouchstart === undefined ?
                    'Click and drag in the plot area to zoom in' : 'Pinch the chart to zoom in'
            },
            xAxis: {
                type: 'datetime'
            },
            yAxis: {
                title: {
                    text: '使用率 (%)'
                }
            },
            legend: {
                enabled: false
            },
            plotOptions: {
                area: {
                    fillColor: {
                        linearGradient: {
                            x1: 0,
                            y1: 0,
                            x2: 0,
                            y2: 1
                        },
                        stops: [
                            [0, Highcharts.getOptions().colors[0]],
                            [1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
                        ]
                    },
                    marker: {
                        radius: 2
                    },
                    lineWidth: 1,
                    states: {
                        hover: {
                            lineWidth: 1
                        }
                    },
                    threshold: null
                }
            },

            series: [{
                type: 'area',
                name: 'used_percent',
                data: mem_info
            }]
        });
    });
});
script>
head>
<body>
<div><H2>服务器监控信息H2>div>
<select id="servers">
    <option value="servers">请选择要监控的服务器option>
    <option value="rotestZone01">rotestZone01option>
    <option value="rotestZone02">rotestZone02option>
select>

<div id="cpu" style="width: 1560px; height: 400px; margin: 0 auto">div>
<div id="mem" style="width: 1560px; height: 400px; margin: 0 auto">div>
body>
html>

<html xmlns="http://www.w3.org/1999/html" xmlns="http://www.w3.org/1999/html">
<head>
<meta charset="UTF-8" />
<title>服务器监控信息title>
<script src="https://code.jquery.com/jquery-3.1.1.min.js">script>
<script src="https://code.highcharts.com/highcharts.js">script>
<script src="https://code.highcharts.com/modules/exporting.js">script>
<script src="https://code.highcharts.com/modules/export-data.js">script>
<script language="JavaScript">
$(document).ready(function() {
    $("#servers").change(function (){
        var selected = $(this).children('option:selected').val();
        var server_res = jQuery.parseJSON('{{ procstat_ret|safe }}');
        var xServers = server_res[selected]

        var obj=document.getElementById('processes');
        if (obj.options.length != 1){
            obj.options.length=1;
        }
        for(var key in xServers)
        {
            obj.options.add(new Option(key,key));
        }

        $("#processes").change(function (){
            var procSelected = $(this).children('option:selected').val();
            var dataMem = new Array();
            var dataCpu = new Array();
            for(var key in xServers)
                {
                    if (key == procSelected){
                        dataCpu = xServers[key]['cpu_usage']
                        dataMem = xServers[key]['memory_rss'];
                        break;
                    }
                }
            Highcharts.chart('cpu', {
            chart: {
                zoomType: 'x'
            },
            title: {
                text: selected + ': CPU 信息'
            },
            subtitle: {
                text: document.ontouchstart === undefined ?
                    'Click and drag in the plot area to zoom in' : 'Pinch the chart to zoom in'
            },
            xAxis: {
                type: 'datetime'
            },
            yAxis: {
                title: {
                    text: '使用率 (%)'
                }
            },
            legend: {
                enabled: false
            },
            plotOptions: {
                area: {
                    fillColor: {
                        linearGradient: {
                            x1: 0,
                            y1: 0,
                            x2: 0,
                            y2: 1
                        },
                        stops: [
                            [0, Highcharts.getOptions().colors[0]],
                            [1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
                        ]
                    },
                    marker: {
                        radius: 2
                    },
                    lineWidth: 1,
                    states: {
                        hover: {
                            lineWidth: 1
                        }
                    },
                    threshold: null
                }
            },

            series: [
                {
                   type: 'area',
                   name: 'cpu_usage',
                   data: dataCpu
                }]
            });

            Highcharts.chart('mem', {
                chart: {
                    zoomType: 'x'
                },
                title: {
                    text: selected + ': 内存信息'
                },
                subtitle: {
                    text: document.ontouchstart === undefined ?
                        'Click and drag in the plot area to zoom in' : 'Pinch the chart to zoom in'
                },
                xAxis: {
                    type: 'datetime'
                },
                yAxis: {
                    title: {
                        text: '使用率 (%)'
                    }
                },
                legend: {
                    enabled: false
                },
                plotOptions: {
                    area: {
                        fillColor: {
                            linearGradient: {
                                x1: 0,
                                y1: 0,
                                x2: 0,
                                y2: 1
                            },
                            stops: [
                                [0, Highcharts.getOptions().colors[0]],
                                [1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
                            ]
                        },
                        marker: {
                            radius: 2
                        },
                        lineWidth: 1,
                        states: {
                            hover: {
                                lineWidth: 1
                            }
                        },
                        threshold: null
                    }
                },

                series: [{
                    type: 'area',
                    name: 'memory_rss',
                    data: dataMem
                }]
            });
        });

    });
});
script>
head>
<body>
<div><H2>服务器监控信息H2>div>

<div id="monitor">
    <select id="servers">
        <option value="server">请选择要监控的服务器option>
        <option value="rotestZone01">rotestZone01option>
        <option value="rotestZone02">rotestZone02option>
    select>
    <select id="processes">
        <option value="process">请选择要监控的进程option>
    select>
div>


<div id="cpu" style="width: 1560px; height: 400px; margin: 0 auto">div>
<div id="mem" style="width: 1560px; height: 400px; margin: 0 auto">div>
body>
html>

六、urls.py添加路由

# Author: Allan
# Datetime: 2019-05-21
from django.contrib import admin
from django.urls import path
from web import views

urlpatterns = [
    # path('admin/', admin.site.urls),
    path('show_servers', views.show_servers),
    path('show_procstat', views.show_procstat),
]

七、运行程序，显示结果

# python3 manager.py runserver

CPU和内存信息

进程信息